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Meaning of phonautograph | Babel Free

Noun CEFR C1
/fənɔːtəɡɹɑːf/

Definitions

A device for recording sound vibrations in a visible form.

historical

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

Phone phone bank phone booth phone box phone call phone card

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